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Finding the Fourth Proportional to 352,372.80, 486,274.80 and 191,227.88

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Solution

The fourth proportional to 352,372.80, 486,274.80 and 191,227.88 is: 263,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,372.80 : 486,274.80 = 191,227.88 : x
  2. Step 2: Convert to fraction form
    352,372.80/486,274.80 = 191,227.88/x
  3. Step 3: Cross multiply
    352,372.80x = 486,274.80 × 191,227.88
  4. Step 4: Simplify right side
    352,372.80x = 92,989,299,101.42
  5. Step 5: Solve for x
    x = 92,989,299,101.42/352,372.80
  6. Step 6: Final answer
    x = 263,894.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.